Vi ruller ut liggeunderlaget på gulvet.

Because å rulle ut is a verb plus a particle, similar to English roll out.

• ruller = roll / are rolling
• ut = out

In main clauses, Norwegian often splits these:

• Vi ruller ut liggeunderlaget.

But in the infinitive, they stay together conceptually:

• å rulle ut

This is very similar to English phrasal verbs.

The basic form is å rulle, which means to roll.

Here, ruller is the present tense:

• jeg ruller = I roll / I am rolling
• vi ruller = we roll / we are rolling

Norwegian present tense often ends in -r.

Liggeunderlaget is a compound noun, and Norwegian makes compounds by joining words together.

It comes from:

• ligge = lie / lying
• underlag = base, support, pad, surface underneath

So liggeunderlag means something like sleeping mat / sleeping pad / camping mat.

Then -et is added to make it definite:

• et liggeunderlag = a sleeping mat
• liggeunderlaget = the sleeping mat

So liggeunderlaget literally means the sleeping mat.

Because the sentence is referring to a specific mat, so Norwegian uses the definite form.

• et liggeunderlag = a sleeping mat
• liggeunderlaget = the sleeping mat

In this sentence, the speaker probably means a particular mat that both speaker and listener know about, or the one being used in the situation.

In Norwegian, the is often built into the noun as an ending.

For neuter nouns like et liggeunderlag, the definite singular form usually ends in -et:

• et hus → huset
• et eple → eplet
• et liggeunderlag → liggeunderlaget

So instead of saying a separate word like English the, Norwegian often adds the definiteness to the end of the noun.

This is normal Norwegian main-clause word order.

The pattern is:

• Vi = subject
• ruller = finite verb
• ut = particle
• liggeunderlaget = object
• på gulvet = prepositional phrase showing location

A key rule in Norwegian is that the finite verb usually comes in second position in main clauses. Here:

• position 1: Vi
• position 2: ruller

Then the rest follows.

På gulvet means on the floor.

• på = on
• gulvet = the floor

So it tells you where the mat is being rolled out.

A useful contrast:

• på gulvet = on the floor
• i gulvet = in the floor

In this sentence, på is the natural choice because the mat is being placed on top of the floor.

Because gulvet is the definite form: the floor.

• et gulv = a floor
• gulvet = the floor

So på gulvet literally means on the floor.

This is very common in Norwegian: nouns often appear in the definite form when talking about something understood from the context, especially everyday locations like the floor, the table, the door, and so on.

Yes, sometimes. Particle placement can vary a bit, especially with emphasis or style.

The most neutral version here is:

• Vi ruller ut liggeunderlaget på gulvet.

But you may also hear:

• Vi ruller liggeunderlaget ut på gulvet.

That can sound slightly more focused on the object before the particle. Both are understandable, but the original sentence is very natural and straightforward.

It can mean either, depending on context.

Norwegian present tense often covers both:

• We roll out the mat
• We are rolling out the mat

So Vi ruller ut liggeunderlaget can be understood as either a general present or an action happening now. Context tells you which meaning is intended.

Yes, vi is the subject pronoun we.

Examples:

• Vi spiser. = We eat / We are eating.
• Vi går hjem. = We go home / We are going home.
• Vi ruller ut liggeunderlaget. = We roll out / are rolling out the sleeping mat.

It is used the same way as English we.

You would normally put ikke after the finite verb:

• Vi ruller ikke ut liggeunderlaget på gulvet.

That means We are not rolling out the sleeping mat on the floor or We do not roll out the sleeping mat on the floor.

This is useful because it shows typical Norwegian word order with negation:

• subject + finite verb + ikke

Yes, it is perfectly natural.

It sounds like something you might say when:

• setting up a sleeping area
• camping
• preparing for guests
• getting ready for an activity on the floor

The sentence is simple, idiomatic, and grammatically normal.